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2112011019 = 321133975231
BaseRepresentation
bin111110111100010…
…1011101100001011
312110012010021110100
41331320223230023
513311133323034
6545323420443
7103223540346
oct17570535413
95405107410
102112011019
119941a2158
124ab384723
13278734b81
141606d545d
15c563b099
hex7de2bb0b

2112011019 has 24 divisors (see below), whose sum is σ = 3086021952. Its totient is φ = 1391765760.

The previous prime is 2112011017. The next prime is 2112011021. The reversal of 2112011019 is 9101102112.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (2112011017) and next prime (2112011021).

It is not a de Polignac number, because 2112011019 - 21 = 2112011017 is a prime.

It is a super-2 number, since 2×21120110192 = 8921181088754836722, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2112010992 and 2112011010.

It is not an unprimeable number, because it can be changed into a prime (2112011017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 401134 + ... + 406364.

It is an arithmetic number, because the mean of its divisors is an integer number (128584248).

Almost surely, 22112011019 is an apocalyptic number.

2112011019 is a deficient number, since it is larger than the sum of its proper divisors (974010933).

2112011019 is a wasteful number, since it uses less digits than its factorization.

2112011019 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5747 (or 5744 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 18.

The square root of 2112011019 is about 45956.6210572535. The cubic root of 2112011019 is about 1283.0159632963.

The spelling of 2112011019 in words is "two billion, one hundred twelve million, eleven thousand, nineteen".

Divisors: 1 3 9 113 339 397 1017 1191 3573 5231 15693 44861 47079 134583 403749 591103 1773309 2076707 5319927 6230121 18690363 234667891 704003673 2112011019